Question

fine the value of r if a line with a slope of -5/2 contains the points (1, -3) and (r, 17)

Answer 1

Use the slope formula. Search for "slope formula"

Answer 2

slope + Rise /Run (change in y/change in x)?

Answer 3

I mean slope = Run/Rise ...?

Answer 4

It's rise/run.

Answer 5

\[\frac{ y-y2 }{ x-x2 }\]=slope

Answer 6

y is the first y-coordinate, y2 is the second y-coordinate. Same thing for the x values.

Answer 7

Does that help? Do you know how to solve the problem now?